Automobile / Light TruckA1 – Engine RepairA2 – Automatic Transmission/TransaxleA3 – Manual Drive Train & AxlesA4 – Suspension & SteeringA5 – BrakesA6 – Electrical/Electronic SystemsA7 – Heating & Air ConditioningA8 – Engine PerformanceA9 – Light Vehicle Diesel EnginesAdvanced LevelL1 – Advanced Engine PerformanceL2 – Electronic Diesel Engine DiagnosisL3 – Light Duty Hybrid / Electric VehicleL4 – Advanced Driver Assistance Systems (ADAS) SpecialistCollision & RefinishingB2 – Painting & RefinishingB3 – Non-Structural Analysis & Damage RepairB4 – Structural Analysis & Damage RepairB5 – Mechanical & Electrical ComponentsB6 – Damage Analysis & EstimatingService ConsultantC1 – Automobile Service ConsultantMaintenance and Light RepairG1 – Auto Maintenance and Light RepairSpecialtyX1 – Undercar Specialist Exhaust SystemsAlternate FuelsF1 – Compressed Natural Gas VehiclesTruck EquipmentE1 – Truck Equipment Installation & RepairE2 – Electrical/Electronic Systems Installation & RepairE3 – Auxiliary Power Systems Installation & RepairParts SpecialistMedium/Heavy TruckT1 – Gasoline EnginesT2 – Diesel EnginesT3 – Drive TrainT4 – BrakesT5 – Suspension & SteeringT6 – Electrical/ Electronic SystemsT7 – Heating, Ventilation & Air Conditioning (HVAC)T8 – Preventive Maintenance InspectionNon-Certification Assessments